Finding the Fourth Proportional to 30,131.82, 45,197.99 and 7,948.35

Step by Step Solution

1. Step 1: Write the proportion equation
   30,131.82 : 45,197.99 = 7,948.35 : x
2. Step 2: Convert to fraction form
   30,131.82/45,197.99 = 7,948.35/x
3. Step 3: Cross multiply
   30,131.82x = 45,197.99 × 7,948.35
4. Step 4: Simplify right side
   30,131.82x = 359,249,443.82
5. Step 5: Solve for x
   x = 359,249,443.82/30,131.82
6. Step 6: Final answer
   x = 11,922.59